PDF malware analysis — malicious · efd5e9005ed928ea

MALICIOUS

PDF

3.2 KB

MD5: 3166c3d90e0bd2e1110bec9024f7ac3f SHA-1: 36266d7d2fb2b9bb2b908dc634863a77a930754d SHA-256: efd5e9005ed928ea6873769207df80dabde1158c124e80c528a0647e4f957246

106 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment

This PDF file was flagged as malicious by ClamAV and a machine learning classifier. It contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities. The JavaScript is likely used to download and execute a second-stage payload, although the specific actions are not fully discernible due to obfuscation. The presence of JavaScript and the PDF exploit detection strongly suggest a malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 3

ClamAV: Pdf.Exploit.Agent-36121 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36121
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `6d9d54b31af11a8765f32f93010529a10f1edd8ee53d9593bf2c41dccc764723`	pdf-javascript-stream	PDF /JS object 7 at offset 0x9C7	470 bytes

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